This product is made of 3604 brass bar material, M2~M5 internal teeth, automatic lathe turning.

The surface is electroplated tin.
Tin electroplating is widely used. Tin has the advantages of corrosion resistance, color resistance, non-toxic, easy brazing, softness, low melting point and good ductility. Through special pretreatment process, a solid, bright, dense, uniform and continuous alloy coating is formed on the surface of composite materials.

Dongguan Tiansheng Co., LTD., specializing in the development and production of non-standard fasteners for 12 years.
 

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